You can trust the women's REI Co-op Activator 3.0 pants to make long trail days comfortable—they breathe, stretch, repel wind and water, and keep your phone and trail snacks handy and secure.

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The further you get from the trailhead, the more you'll love the the women's REI Co-op Activator 3.0 pants—they breathe, stretch, repel wind and water, and keep your phone and snacks handy and secure.

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Combining a clean look you can wear to the office with the on-the-move comfort you crave off the clock, the men's On Active pants are cut from a high-stretch performance fabric meant for going places.

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You could be on a yoga mat, a patch of grass or a long flat rock—and in the soft and stretchy fabric of the REI Co-op Active Pursuits 7/8 ribbed tights, you can easily settle into a free-moving flow.

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Strolling, hiking or flat-out running, the women's REI Co-op Active Pursuits 7/8 tights provide stretchy, breathable support that makes it feel easy.

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Made to warm up, cool down and stay out longer—the kids' REI Co-op Active Pursuits Tech Pants have 4-way-stretch, quick-drying, abrasion-resistant nylon with a ready-for-it-all, pull-on fit.

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The kids' REI Co-op Active Pursuits tights offer breathable warmth, stellar support and ample flexibility for a variety of activities—from light nature walks to hours on the playground.

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For cool-weather day hikes and limit-pushing gym nights, the women's plus size REI Co-op Active Pursuits tights offer breathable warmth and the easy mobility of 4-way stretch.

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With outdoor-focused features like reflective elements, breathable fabric and a quick-dry finish, the men's Smartwool Active Tech pants are equally at home on the trails or at the coffee shop.

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These are made for legs in motion. The soft-touch women's On Active tights are ready for a cool-weather run and have you covered for a workout. Plus, they have plenty of pockets.

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A distressed wash effect gives the MPG Adele Relaxed jogger pants an updated finish that is on point for amazing softness with a casual, lived-in appearance.

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Offering great fit and recovery during high-intensity workouts, these Craft Adv Essence High-Waist Training Tights include mesh details at back and a V-shaped waistband with a small key pocket.

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Pants that match your pace. The Aenergy Light soft shell pants are ideal in summer for mountaineering and climbing or for hiking in the mountains during seasonal transitions. They are made from a particularly lightweight and yet highly abrasion-resistant double-weave fabric. The water-repellent treatment is PFC-free. The pants are breathable, quick-drying and their elasticated properties allow freedom of movement. The waistband is elasticated and the drawstring ensures a perfect fit. The climbing harness-compatible pockets have zippers to make sure nothing gets lost. A drawstring allows you to ideally adjust the leg hems for a more streamlined fit, providing a clearer view of your foot placements when mountaineering and climbing. The Aenergy Light SO Pants: our lightest softshell pants for mountain sports enthusiasts who like to move that little bit faster.

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Lightweight hybrid pants for high-intensity ski tours. The body-mapped construction places 3-layer Mammut FLEXGUARD Protect at the lower leg and seat for reliable protection against abrasions and water. Reinforced Mammut FLEXGUARD Active featured throughout the design offers durable edge and crampon protection without compromising mobility or breathability. 2-way side ventilation zippers provide enhanced temperature regulation during strenuous ascents. The adjustable leg width features zippered gussets with anti-slip tape and lace hooks, creating a secure fit over ski boots to reduce snow entry. The Aenergy Pro SO Hybrid Pants combine softshell flexibility with hardshell protection.

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